PA_SPEAKERS_WA_1_0.DOC
18/20
The operator has to make sure that safety-relating and machine-technical installations are approved by an
expert before taking into operation for the first time and after changes before taking into operation another
time.
The operator has to make sure that safety-relating and machine-technical installations are approved by an
expert after every four year in the course of an acceptance test.
The operator has to make sure that safety-relating and machine-technical installations are approved by a
skilled person once a year.
Procedure:
The speaker-system should be installed outside areas where persons may walk by or be seated.
IMPORTANT! OVERHEAD RIGGING REQUIRES EXTENSIVE EXPERIENCE, including (but not limited to)
calculating working load limits, installation material being used, and periodic safety inspection of all
installation material and the speaker-system. If you lack these qualifications, do not attempt the installation
yourself, but instead use a professional structural rigger. Improper installation can result in bodily injury and
or damage to property.
Caution:
Speaker-systems in hanging installations may cause severe injuries when crashing down! If you
have doubts concerning the safety of a possible installation, do NOT install the speaker-system!
Suspended installation
This speaker-system must never be suspended - Danger to Life due to crashing
speaker-systems!
OPERATION
After having connected your amplifier to the mains, turn the volume control counter-clockwise to Min-
position. The last device to be switched on is the amplifier. Adjust the volume with the volume control.
Caution!
Increase the level of each channel only so far that the CLIP-LED lights up shortly. Thus, you avoid
that the output signal is distorted and your speakers are damaged.
When operating the speaker, please make sure that the loudspeakers always sound well. When distortions
can be heard, either the amplifier or the loudspeaker is overloaded. Overloads can quickly lead to amplifier
or speaker damage.
In order to avoid damage, please reduce the volume immediately when distortions can be heard. When
speakers are destroyed by overload, the guarantee becomes void.
CLEANING AND MAINTENANCE
The operator has to make sure that safety-relating and machine-technical installations are inspected by an
expert after every four years in the course of an acceptance test.
The operator has to make sure that safety-relating and machine-technical installations are inspected by a
skilled person once a year.
The following points have to be considered during the inspection:
1) All screws used for installing the speakers or parts of the speaker have to be tightly connected and must
not be corroded.
2) There must not be any deformations on housings, fixations and installation spots (ceiling, suspension,
trussing).
3) The electric power supply cables must not show any damages, material fatigue (e.g. porous cables) or
sediments. Further instructions depending on the installation spot and usage have to be adhered by a
skilled installer and any safety problems have to be removed.
